(18) Have fail-safe devices been provided so that a
malfunction in one unit or subassembly cannot cause malfunction in other units
or subassemblies, with resultant serious damage to the system and possible
injury to personnel? CDR

(19) Are electrical cables routed such that they are
not near sources of high temperatures? CDR

(20) Have voltage dividers or other such devices to
reduce the voltage at test points to a relatively low potential level been
provided when potentials in excess of 30 volts peak are required to be
measured? PDR

(21) Is there evidence that the design guidelines of
MIL-HDBK-241 have been incorporated to the maximum extent possible? CDR